Hello everyone. This weekend I'm going to be photographing and event in a big room where the ceiling is around 70' and ambient light is going to be near total darkness. There are going to be some robots disco lights. My gear is a Nikon d7000 18.200mm lens and the sb600 flash, a flash bracket and a on flash bouncer. This is my first time taking pictures in dark environment and I am a bit nervous because I know a person who took photos at same place few months ago and I don't like his pictures they look quite dark and the colors don't look nice at all. what would be some good settings to photograph in near total darkness? Thanks in advance!